Not sure if the current version of SharpDevelop allows us to compile project with 4.6+ framework and/or C# 6.0+
At least in my Project > Properties > Compiling I see only 4.5.2 and 5.0 as the maximum I can go on Ranorex Studio 6.1.0

So, since there seems to be no further development going on for SharpDevelop (the latest release is older than one year and the post you linked mentions that SharpDevelop is dead), does this mean there won't be support for .NET 6 and higher in Ranorex?